The article indicates that Cindy found Diana’s humanitarian work inspirational, not her personal life.
It’s just the same old liberal view:
“If the U.S. approves a global ban of all land mines, American soldiers will be put in greater danger and a harmful double standard will be created in arms control: A country not causing the problem — the United States — will disarm while rogue nations proliferating civilian-killing mines will not join the agreement and will not disarm.”
http://www.heritage.org/Research/PoliticalPhilosophy/EM466.cfm